How are you calculating these aggregates? The mean is pretty easy using `response_time.sum` and `.count`, but I wouldn't know how to go about aggregating the 10-sec interval standard deviation to something that represents all day, not to mention median.

Also, is this the `min` and `max` of the 10s means? or of over all?

I don't think min and max are nearly as useful as a 90% interval (`upper_90`)